’24’ and ‘NCIS’ Star Gregory Itzin Dead at 74

Gregory Itzin, star of “24,” “NCIS” and several other huge TV hits, has died … according to a close friend and co-worker.

Gregory played U.S. Prez Charles Logan for 6 years on “24” … a brilliant role, alongside Kiefer Sutherland, that earned him an Emmy nomination for Outstanding Supporting Actor.

Sorry for the spoiler (it’s been more than 10 years, though), but Itzin’s villain turn in the series is pretty epic.

“24” executive producer Jon Cassar shared the news of Gregory’s death Friday morning on Twitter, saying “He was one of the most talented actors I had the honor to work with, but more than that he was an all around great guy. He’ll be missed by his 24 family who had nothing but love & respect for him.”

Itzin went on to nab roles on “NCIS” — as Director Charlie for several seasons — “The Mentalist,” “Judging Amy” and “Star Trek: Enterprise” … where he played Admiral Black.

He even had a bit role on the Phoebe wedding episodes of “Friends.”

Gregory is survived by his wife Judie and their 2 children.

He was 74.